1 / 5

5.2 Rates and Unit Rates

5.2 Rates and Unit Rates. Rate (of a per b):. Ratio that compares two quantities with different units of measure. EX: $23 per foot EX: 55 mph EX: $5/person. Ratio :. 90 3. 90 miles 3 hours. “90 miles per 3 hours.”. Rate:. Unit Rate:. A rate with a denominator of 1 Example:

kamran
Télécharger la présentation

5.2 Rates and Unit Rates

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 5.2 Rates and Unit Rates

  2. Rate (of a per b): Ratio that compares two quantities with different units of measure. • EX: $23 per foot • EX: 55 mph • EX: $5/person Ratio: 90 3 90 miles 3 hours “90 miles per 3 hours.” Rate:

  3. Unit Rate: • A rate with a denominator of 1 Example: Your family drove 400 miles in 8 hours. The total amount of fuel used was 20 gallons of gas. • What was the average rate of fuel consumption (miles per gallon)? • 2) What was the average rate of speed (miles per hour)? = miles per gallon = mph

  4. 320 feet 8 seconds 313 feet 8 seconds 450 students 90 computers 450 students 91 computers   5 students 1 computer 40 feet 1 second   Estimating Unit Rates: Round one of the #’s so you can divide easily  450 students to 91 computers 313 feet in 8 seconds

  5. Unit Price: Same as unit rate; used to compare price per item - found by $ divided by # of items ($/item). Example: A 16 oz box of cereal costs $2.89 and a 20 oz box costs $3.49. Which is the better buy? = $0.18 per oz. So, the 20 oz. is a better deal!  (cheaper)! = $0.17 per oz.

More Related